Tests for mechanical and physical properties of aggregates - Part 1: Determination of the resistance to wear (micro-Deval)

This European Standard describes the reference method used for type testing and in case of dispute for determining the resistance to wear of coarse aggregates (main text) and aggregates for railway ballast (Annex A). For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. The sample is normally tested in a wet condition, but the test may also be carried out in a dry condition. This European Standard applies to natural, manufactured or recycled aggregates used in building or civil engineering.

Prüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen - Teil 1: Bestimmung des Widerstandes gegen Verschleiß (Micro-Deval)

Diese Europäische Norm legt das für die Erstprüfung und in Streitfällen anzuwendende Referenzverfahren für
die Bestimmung des Widerstandes gegen Verschleiß von groben Gesteinskörnungen (Haupttext) und von
Gesteinskörnungen für Gleisschotter (Anhang A) fest. Für andere Zwecke, speziell im Rahmen der
werkseigenen Produktionskontrolle, dürfen andere Verfahren angewendet werden, sofern ein ausreichender
Zusammenhang zum Referenzverfahren nachgewiesen wurde. Die Probe wird üblicherweise in einem nassen
Zustand geprüft, die Prüfung darf aber in einem trockenen Zustand durchgeführt werden. Diese Europäische
Norm gilt für natürliche, künstliche oder wiederverwendbare Gesteinskörnungen, die im Bauwesen verwendet
werden.

Essais pour déterminer les caractéristiques mécaniques et physiques des granulats - Partie 1: Détermination de la résistance à l'usure (micro-Deval)

La présente Norme européenne spécifie la méthode de référence utilisée pour les essais de type initiaux et,
en cas de litige, pour la détermination de la résistance à l'usure des gravillons (texte principal) et des
granulats de ballast de chemin de fer (Annexe A). Dans les autres cas, en particulier pour la maîtrise de la
production en usine, d’autres méthodes peuvent être utilisées sous réserve qu’une corrélation appropriée
avec la méthode de référence ait été établie. L’échantillon est normalement soumis à l’essai à l'état humide,
mais l’essai peut également être effectué à l’état sec. La présente Norme européenne s’applique à des
granulats naturels, artificiels ou recyclés utilisés dans le bâtiment ou le génie civil.

Preskusi mehanskih in fizikalnih lastnosti agregatov - 1. del: Določevanje odpornosti proti obrabi (mikro Deval)

Ta evropski standard opisuje referenčno metodo, ki se uporablja za tipsko preskušanje v primeru spora pri določevanju odpornosti grobih agregatov (osrednje besedilo) in gramoza za železnice proti obrabi (dodatek A). Za druge namene, zlasti za nadzor nad tovarniško proizvodnjo, se lahko uporabljajo druge metode pod pogojem, da je vzpostavljen primeren delovni odnos z referenčno metodo. Vzorec se običajno preskuša v vlažnih pogojih, vendar se lahko preskusi izvajajo tudi v suhih pogojih. Ta evropski standard velja za naravne, proizvedene in reciklirane agregate, ki se uporabljajo pri gradnji ali v gradbeništvu.

General Information

Status
Published
Publication Date
18-Jan-2011
Technical Committee
Current Stage
9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
Due Date
15-Apr-2016
Completion Date
24-Jul-2017

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.ORþHYDQMHPrüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen - Teil 1: Bestimmung des Widerstandes gegen Verschleiß (Micro-Deval)Essais pour déterminer les caractéristiques mécaniques et physiques des granulats - Partie 1: Détermination de la résistance à l'usure (micro-Deval)Tests for mechanical and physical properties of aggregates - Part 1: Determination of the resistance to wear (micro-Deval)91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:Ta slovenski standard je istoveten z:EN 1097-1:2011SIST EN 1097-1:2011en,fr,de01-marec-2011SIST EN 1097-1:2011SLOVENSKI

STANDARDSIST EN 1097-1:1999/A1:2004SIST EN 1097-1:19991DGRPHãþD
SIST EN 1097-1:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1097-1
January 2011 ICS 91.100.15 Supersedes EN 1097-1:1996English Version

Tests for mechanical and physical properties of aggregates - Part 1: Determination of the resistance to wear (micro-Deval)

Essais pour déterminer les caractéristiques mécaniques et physiques des granulats - Partie 1: Détermination de la résistance à l'usure (micro-Deval)

Prüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen - Teil 1: Bestimmung des Widerstandes gegen Verschleiß (Micro-Deval) This European Standard was approved by CEN on 11 December 2010.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1097-1:2011: ESIST EN 1097-1:2011

EN 1097-1:2011 (E) 2 Contents Page Foreword ..............................................................................................................................................................31Scope ......................................................................................................................................................42Normative references ............................................................................................................................43Terms and definitions ...........................................................................................................................44Principle ..................................................................................................................................................45Apparatus ...............................................................................................................................................55.1General apparatus .................................................................................................................................55.2Additional apparatus required for the determination of the micro-Deval coefficient of aggregate ................................................................................................................................................56Preparation of the test specimens .......................................................................................................77Test procedure .......................................................................................................................................78Calculation and expression of results .................................................................................................89Test report ..............................................................................................................................................8Annex A (normative)

Determination of the resistance to wear (micro-Deval) of railway ballast ................95Apparatus ...............................................................................................................................................96Preparation of the test specimens .......................................................................................................97Test procedure .......................................................................................................................................98Calculation and expression of results .................................................................................................99Test report ........................................................................................................................................... 10Annex B (informative)

Determination of micro-Deval coefficient in the dry condition ............................. 11B.1Introduction ......................................................................................................................................... 11B.2Apparatus ............................................................................................................................................ 11B.3Preparation of sample for testing ..................................................................................................... 11B.4Test procedure .................................................................................................................................... 11B.5Calculation and expression of results .............................................................................................. 11B.6Report .................................................................................................................................................. 11Annex C (informative)

Alternative narrow range classification for the micro-Deval test ......................... 129Test report ........................................................................................................................................... 12Annex D (informative)

Precision ..................................................................................................................... 13Bibliography ..................................................................................................................................................... 14 SIST EN 1097-1:2011

EN 1097-1:2011 (E) 3 Foreword This document (EN 1097-1:2011) has been prepared by Technical Committee CEN/TC 154 “Aggregates”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2011, and conflicting national standards shall be withdrawn at the latest by July 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document replaces EN 1097-1:1996. This standard forms part of a series of tests for mechanical and physical properties of aggregates. Test methods for other properties of aggregates will be covered by the following European Standards: − EN 932 (all parts), Tests for general properties of aggregates; − EN 933 (all parts), Tests for geometrical properties of aggregates; − EN 1367 (all parts), Tests for thermal and weathering properties of aggregates; − EN 1744 (all parts), Tests for chemical properties of aggregates; − EN 13179 (all parts), Tests for filler aggregate used in bituminous mixtures. The other Parts of EN 1097 will be: − Part 2: Methods for the determination of resistance to fragmentation; − Part 3: Determination of loose bulk density and voids; − Part 4: Determination of the voids of dry compacted filler; − Part 5: Determination of the water content by drying in a ventilated oven; − Part 6: Determination of particle density and water absorption; − Part 7: Determination of the particle density of filler — Pyknometer method; − Part 8: Determination of the polished stone value;

− Part 9: Determination of the resistance to wear by abrasion from studded tyres  Nordic test; − Part 10: Determination of water suction height. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 1097-1:2011

EN 1097-1:2011 (E) 4 1 Scope This European Standard describes the reference method used for type testing and in case of dispute for determining the resistance to wear of coarse aggregates (main text) and aggregates for railway ballast (Annex A). For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. The sample is normally tested in a wet condition, but the test may also be carried out in a dry condition. This European Standard applies to natural, manufactured or recycled aggregates used in building or civil engineering. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 932-2, Tests for general properties of aggregates — Part 2: Methods for reducing laboratory samples EN 932-5, Tests for general properties of aggregates — Part 5: Common equipment and calibration EN 933-1:1997, Tests for geometrical properties of aggregates — Part 1: Determination of particle size distribution — Sieving method EN ISO 4788, Laboratory glassware — Graduated measuring cylinders (ISO 4788:2005) ISO 3290-1, Rolling bearings — Balls — Part 1: Steel balls 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 test portion sample used as a whole in a single test 3.2 test specimen sample used in a single determination when a test method requires more than one determination of a property 3.3

laboratory sample reduced sample derived from a bulk sample for laboratory testing 3.4

constant mass mass determined by successive weightings performed at least 1 h apart and not differing by more than 0,1% NOTE In many cases, constant mass can be achieved after a test portion has been dried for a pre-determined period in a specified oven at (110 ± 5) °C. Test laboratories can determine the time required to achieve constant mass for specific types and sizes of sample dependent upon the drying capacity of the oven used. 4 Principle The test determines the micro-Deval coefficient which is the percentage of the original sample reduced to a size smaller than 1,6 mm during rolling. SIST EN 1097-1:2011

EN 1097-1:2011 (E) 5 The test consists of measuring the wear produced by friction between the aggregates and an abrasive charge in a rotating drum under defined conditions. When rolling is complete, the percentage retained on a 1,6 mm sieve is used to calculate the micro-Deval coefficient. The test method described in this European Standard is the reference method and is carried out with dry aggregate with the addition of water to give a value of MDE. Annex B gives details of how the test can be performed without the addition of water, to give

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